201031140125 has 16 divisors (see below), whose sum is σ = 252186825072. Its totient is φ = 159991603200.

The previous prime is 201031140083. The next prime is 201031140131. The reversal of 201031140125 is 521041130102.

It can be written as a sum of positive squares in 8 ways, for example, as 116272134169 + 84759005956 = 340987^2 + 291134^2 .

It is not a de Polignac number, because 201031140125 - 2¹² = 201031136029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201031140097 and 201031140106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4142324 + ... + 4190573.

It is an arithmetic number, because the mean of its divisors is an integer number (15761676567).

Almost surely, 2^201031140125 is an apocalyptic number.

201031140125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201031140125 is a deficient number, since it is larger than the sum of its proper divisors (51155684947).

201031140125 is an equidigital number, since it uses as much as digits as its factorization.

201031140125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333105 (or 8333095 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 201031140125 its reverse (521041130102), we get a palindrome (722072270227).

The spelling of 201031140125 in words is "two hundred one billion, thirty-one million, one hundred forty thousand, one hundred twenty-five".